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(B) Let the radius of the cylinder be $r$ and its height be $h$. The volume of the cylinder is $V_{cylinder} = \pi r^{2} h$.The volume of a right cone

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$3$

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(B) Let the radius of the cylinder be $r$ and its height be $h$. The volume of the cylinder is $V_{cylinder} = \pi r^{2} h$.The volume of a right cone with the same radius $r$ and height $h$ is $V_{cone} = \frac{1}{3} \pi r^{2} h$.Let $x$ be the number of cones required to store the water from the cylinder.Therefore,$x 	imes V_{cone} = V_{cylinder}$.Substituting the values,$x 	imes (\frac{1}{3} \pi r^{2} h) = \pi r^{2} h$.Solving for $x$,we get $x = 3$.

$A$ right cylindrical vessel is full with water. How many right cones having the same diameter and height as those of the right cylinder will be needed to store that water?

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